Best Basement Apartment Layouts: Design Tips to Maximize Space & Function
Thinking of turning your basement into a rental unit or private living space? A smart layout can make all the difference.
Basements come with unique design challenges—limited lighting, low ceilings, and odd-shaped rooms. But with thoughtful planning, you can create a comfortable, modern apartment that adds both value and usability to your home.
If you’re in Pickering, Ajax, Whitby, Oshawa, or anywhere in Durham Region, here’s what to keep in mind when planning your basement apartment layout.
 1. Start with Building Code Basics
Before diving into layout ideas, make sure your design meets local requirements. In Ontario, a legal basement apartment (also known as a secondary suite) typically needs:
- A separate entrance
- Minimum ceiling height (usually at least 6 feet 5 inches)
- Egress windows in every bedroom
- Independent heating and ventilation
- Proper soundproofing between units
Tip: Always check with your local building department before starting construction or get advice from a contractor who knows the local bylaws.
2. Open Living and Kitchen Areas
Combining the kitchen and living room in one open area creates the illusion of more space and allows natural light to spread further into the unit. This layout is budget-friendly and flexible.
Design Tip: Place these living spaces near existing windows or exterior walls for better lighting.
3. Ideal One-Bedroom Setup
A one-bedroom basement suite is perfect for a single renter or a couple. It’s simple, efficient, and meets the needs of most homeowners looking to generate rental income.
Recommended Flow:
Entrance → Living area → Kitchen
Bathroom opposite or beside the bedroom
Laundry in hallway closet or niche
Make sure the bedroom has a window that meets safety requirements.
4. Straight-Line (Galley) Kitchen
This space-saving kitchen layout works great in narrow basements. All appliances and cabinets run along one wall, leaving the rest of the room open.
Add a movable island or bar-height table for extra prep and dining space.
5. Private Entry with Functional Foyer
Make sure the unit has its own entrance. If possible, include a small entry zone or mudroom with:
Durable flooring
Hooks or a coat rack
A bench or small shoe cabinet
This makes the space feel more independent and renter-friendly.
6. Brighten with Lighting and Mirrors
Since basements have limited natural light, use a combination of recessed lighting, wall sconces, and mirrors to make the space feel brighter and more open.
Stick to light, neutral paint colors to reflect available light.
4. Two-Bedroom Apartment for Extra Value
If your basement is large enough, a two-bedroom unit can increase rental potential or provide extra space for family.
Layout Notes:
Place bedrooms on opposite sides for privacy
Include a centrally located shared bathroom
Maximize storage with closets, under-stair drawers, or wall shelving
7. Brighten with Lighting and Mirrors
Since basements have limited natural light, use a combination of recessed lighting, wall sconces, and mirrors to make the space feel brighter and more open.
Stick to light, neutral paint colors to reflect available light.
8. Add In-Unit Laundry
If space allows, install a compact washer and dryer in a closet or corner. Tenants appreciate private laundry, and it adds convenience for in-laws or guests.
Example: Efficient 1-Bedroom Layout (Approx. 550–700 sq ft)
Private entrance
Open living/dining area
Straight-line kitchen
One bedroom with egress window
Three-piece bathroom
Stacked laundry unit
Storage or mechanical room
Final Thoughts
Designing a functional basement apartment is all about using every inch wisely. The right layout improves comfort, rental value, and resale potential—especially if it follows all building codes and local standards.
If you’re planning a basement conversion in Durham Region, from Pickering to Oshawa, a well-designed layout is the key to success.
Want help designing the perfect basement apartment? Contact BNP Contracting for a consultation—we’ll help you plan, design, and build your ideal space. Final Thoughts
Designing a functional basement apartment is all about using every inch wisely. The right layout improves comfort, rental value, and resale potential—especially if it follows all building codes and local standards.
If you’re planning a basement conversion in Durham Region, from Pickering to Oshawa, a well-designed layout is the key to success.
Want help designing the perfect basement apartment? Contact BNP Contracting for a consultation—we’ll help you plan, design, and build your ideal space.